Pith Number

pith:HQBUKCSN

pith:2017:HQBUKCSNG6N2HNPAK64IDH2ZAQ

not attested not anchored not stored refs pending

Exact observability of a 1D wave equation on a non-cylindrical domain

Bernhard Hermann Haak, Duc-Trung Hoang

arxiv:1705.10652 v1 · 2017-05-30 · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQBUKCSNG6N2HNPAK64IDH2ZAQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:43:23.912474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c03450a4d379ba3b5e057b8819f590417adaafc898b58ce549de6f3c7fff303

Aliases

arxiv: 1705.10652 · arxiv_version: 1705.10652v1 · doi: 10.48550/arxiv.1705.10652 · pith_short_12: HQBUKCSNG6N2 · pith_short_16: HQBUKCSNG6N2HNPA · pith_short_8: HQBUKCSN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HQBUKCSNG6N2HNPAK64IDH2ZAQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3c03450a4d379ba3b5e057b8819f590417adaafc898b58ce549de6f3c7fff303

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74d1aef575b05cad09526f7c7e712d206981e8cd6b98f97bde9bb98adf9162e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-05-30T14:08:57Z",
    "title_canon_sha256": "84d5530208a821a9244e49cafbd87d375636221b39112aa8924c5be242386cc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10652",
    "kind": "arxiv",
    "version": 1
  }
}